Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

59°F

15°C

Humidity	88%
Wind Speed	E 12 mph
Barometer	30.23 in
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	21 Sep 11:55 am MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

6 Miles SE Lead SD

This Afternoon
High: 56 °F
Showers and
Patchy Fog
Tonight
Low: 41 °F
Chance
Showers and
Patchy Fog
then Patchy
Fog
Tuesday
High: 67 °F
Patchy Fog
then Mostly
Sunny
Tuesday Night
Low: 48 °F
Slight Chance
Showers
Wednesday
High: 72 °F
Slight Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 45 °F
Mostly Clear
Thursday
High: 72 °F
Mostly Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 74 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Showers. Patchy fog. High near 56. Southeast wind 3 to 6 mph. Winds could gust as high as 18 mph. Chance of precipitation is 80%.

Tonight

A 40 percent chance of showers before 10pm. Patchy fog. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 41. South wind around 6 mph, with gusts as high as 20 mph.

Tuesday

Patchy fog before 7am. Otherwise, sunny, with a high near 67. South wind 6 to 8 mph, with gusts as high as 21 mph.

Tuesday Night

A 20 percent chance of showers. Partly cloudy, with a low around 48. South wind around 7 mph, with gusts as high as 23 mph.

Wednesday

A slight chance of showers before noon, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 72. Southwest wind 5 to 7 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 45. Light and variable wind. Winds could gust as high as 16 mph.

Thursday

Mostly sunny, with a high near 72.

Thursday Night

Partly cloudy, with a low around 46.

Friday

Mostly sunny, with a high near 74.

Friday Night

Mostly clear, with a low around 49.

Saturday

Sunny, with a high near 72.